美研究人员确定大豆提取生物柴油比玉米提取乙醇效果要好
...emyofSciences.Theresearcherstrackedalltheenergyusedforgrowingcornandsoybeansandconvertingthecropsintobiofuels.Theyalsolookedathowmuchfertilizerandpesticidecornandsoybeansrequiredandhowmuchgreenhousegasesandnitrogen,phosphorus,andpesticidepollutantseachreleasedintotheenvironment.Quantifyingthebenefit...
医药经济;生物技术;生物能源PotentialcomplicationsofphakicIOLs
...apotentialprobleminsucheyes:dislocationofPCPIOLintothevitreouscavity.PCPIOLsareinsertedblindlybehindtheirisand,dependingonthedesign,allowtheirhapticstorestatthestructuresoftheposteriorchamberorfloatinit.Ultrasoundbiomicroscopy(UBM)identifiedhaptic-zonulescontactandlensrotationfortheimplantablecontac...
医源资料库;在线期刊;英国眼科学杂志;2004年第88卷第11期不同年龄组血液流变学结果的变化及分析
...防心脑血管疾病提供实验依据。研究者采用北京赛科希德SA-6000自动血液流变测试仪分别测定门诊、住院患者830例(其中中青年组280例、中老年组290例、高龄老年组260例)和健康对照组838名(其中中青年人300名、中老年人280名、高龄...
行业资讯;临床快报;血液ReplytoCoenetal.
...tiousDiseases,DepartmentofMedicine,DepartmentofPathology,CollegeofPhysiciansandSurgeons,DepartmentofStatisticsDepartmentofEpidemiology,MailmanSchoolofPublicHealth,ColumbiaUniversity,NewYork,NewYorkWeprovideadditionalinformationtoaddresstheconcernsraisedbyCoenetal.[1]aboutourarticle[2].Ourenumerateda...
医源资料库;在线期刊;传染病学杂志;2005年第191卷第11期小鼠的插入突变
...pe)。另外,在脊椎动物中发现的活跃的转座元件(transposableelement),以及由此开发出来的遗传学工具,促进了在小鼠体内正向插入突变筛选基因的应用。这些新技术将会大大加快我们彻底解析小鼠基因组的步伐。 (插入突...
医药经济;生物技术;实验技术;动物学技术中国科学家首次揭示水稻杂种雄性不育的分子基础
...发现,控制水稻籼粳杂种雄性不育及其亲和性的一个座位Sa由2个相邻的基因(SaM和SaF)组成。杂种的籼型和粳型等位基因通过直接的和间接的互作控制携带粳型等位基因的雄配子的选择性败育。部分籼稻品系携带亲和(中性)的单...
医药经济;生物技术;技术要闻ReplytoJJSegall
JuneMChanDepartmentsofEpidemiologyandBiostatisticsandofUrologyUniversityofCalifornia,SanFrancisco3333CaliforniaStreetSuite280SanFrancisco,CA94143-1228E-mail:jchan{at}epi.ucsf.eduDearSir:Segallpresentsaninterestingpointregardingthepotentialinteractionbetweencalciumandlactoseandprostatecancerrisk.Hesu...
医源资料库;在线期刊;美国临床营养学杂志;2002年76卷第1期ReplytoTOkada
AilsaGoulding,AndreaMGrantandJenniferEPRockellDepartmentofMedicalandSurgicalSciencesUniversityofOtagoPOBox913DunedinNewZealandE-mail:ailsa.goulding{at}stonebow.otago.ac.nzDepartmentofHumanNutritionUniversityofOtagoPOBox56DunedinNewZealandDearSir:WethankOkadaforhisinterestinourearlierstudythatshowedt...
医源资料库;在线期刊;美国临床营养学杂志;2004年80卷第4期DietarySupplementsAFrameworkforEvaluatingSafety
bytheCommitteeontheFrameworkforEvaluatingtheSafetyofDietarySupplements,FoodandNutritionBoard,BoardonLifeSciences,InstituteofMedicineandNationalResearchCounciloftheNationalAcademies,2004,506pages,hardcover,$59.95.TheNationalAcademiesPress,Washington,DC.:KarrieHenemanDepartmentofNutritionUniversityo...
医源资料库;在线期刊;美国临床营养学杂志;2005年82卷第5期ReplytoCKuratkoetalandtoPGrandjean
MariaMakridesandRobertAGibsonChildHealthResearchInstituteWomen‘sYouthandChildren‘sHealthServiceDepartmentofPediatricsUniversityofAdelaide72KingWilliamRoadNorthAdelaideSA5006AustraliaE-mail:makridesm{at}mail.wch.sa.gov.auDearSir:Thepurposeofoursystematicreviewwastoevaluatetheeffectofsupplementing...
医源资料库;在线期刊;美国临床营养学杂志;2005年82卷第6期